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https://www.readbyqxmd.com/read/28091603/repo-man-pp1-regulates-heterochromatin-formation-in-interphase
#1
Inês J de Castro, James Budzak, Maria L Di Giacinto, Lorena Ligammari, Ezgi Gokhan, Christos Spanos, Daniela Moralli, Christine Richardson, Jose I de Las Heras, Silvia Salatino, Eric C Schirmer, Katharine S Ullman, Wendy A Bickmore, Catherine Green, Juri Rappsilber, Sarah Lamble, Martin W Goldberg, Veronica Vinciotti, Paola Vagnarelli
Repo-Man is a protein phosphatase 1 (PP1) targeting subunit that regulates mitotic progression and chromatin remodelling. After mitosis, Repo-Man/PP1 remains associated with chromatin but its function in interphase is not known. Here we show that Repo-Man, via Nup153, is enriched on condensed chromatin at the nuclear periphery and at the edge of the nucleopore basket. Repo-Man/PP1 regulates the formation of heterochromatin, dephosphorylates H3S28 and it is necessary and sufficient for heterochromatin protein 1 binding and H3K27me3 recruitment...
January 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28091560/spatio-temporal-analysis-of-malaria-incidence-in-the-peruvian-amazon-region-between-2002-and-2013
#2
Veronica Soto-Calle, Angel Rosas-Aguirre, Alejandro Llanos-Cuentas, Emmanuel Abatih, Redgi DeDeken, Hugo Rodriguez, Anna Rosanas-Urgell, Dionicia Gamboa, Umberto D Alessandro, Annette Erhart, Niko Speybroeck
Malaria remains a major public health problem in the Peruvian Amazon where the persistence of high-risk transmission areas (hotspots) challenges the current malaria control strategies. This study aimed at identifying significant space-time clusters of malaria incidence in Loreto region 2002-2013 and to determine significant changes across years in relation to the control measures applied. Poisson regression and purely temporal, spatial, and space-time analyses were conducted. Three significantly different periods in terms of annual incidence rates (AIR) were identified, overlapping respectively with the pre-, during, and post- implementation control activities supported by PAMAFRO project...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28089763/comparison-of-multi-arm-multi-stage-design-and-adaptive-randomization-in-platform-clinical-trials
#3
REVIEW
Jianchang Lin, Veronica Bunn
Platforms trials are clinical trials that allow for concurrent evaluations of multiple treatments, thus allowing for more efficient and ethical studies compared to traditional two-arm trials. Conventional group-sequential multi-arm multi-stage (MAMS) designs use pre-specified stopping boundaries and treatment selection rules to determine if experimental treatments should be dropped. Flexible MAMS designs allow for interim modifications to the design plan without compromising error rates. Bayesian response adaptive randomization (BRAR) designs increase patient allocation to treatment arms that are performing well during the course of the trial...
January 12, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28089002/segmental-hemangioma-of-the-head-and-neck-high-prevalence-of-phace-syndrome
#4
Karina M Forde, Mary T Glover, W K Chong, Veronica A Kinsler
No abstract text is available yet for this article.
February 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28088538/perceived-parental-alcohol-problems-and-drinking-patterns-in-youth-a-cross-sectional-study-of-69-030-secondary-education-students-in-denmark
#5
Veronica S C Pisinger, Charlotte A Holst, Pernille Bendtsen, Ulrik Becker, Janne S Tolstrup
The aim of the study was to examine whether young people with parental alcohol problems have different drinking patterns than those without parental alcohol problems. Further, we examined whether the association between parental alcohol problems and young people's drinking patterns differed depending on the gender of the child and the parent, and whether more severe parental alcohol problems and cohabitation with the parent with alcohol problems was associated with earlier and heavier drinking patterns. Data came from the Danish National Youth Study 2014, a web-based national survey...
January 11, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28087763/circadian-kinetics-of-cell-cycle-progression-in-adult-neurogenic-niches-of-a-diurnal-vertebrate
#6
Veronica Akle, Alexander J Stankiewicz, Vasili Kharchenko, Lili Yu, Peter V Kharchenko, Irina V Zhdanova
: The circadian system may regulate adult neurogenesis via intracellular molecular clock mechanisms or by modifying the environment of neurogenic niches, with daily variation in growth factors or nutrients depending on the animal's diurnal or nocturnal life-style. In a diurnal vertebrate, zebrafish, we studied circadian distribution of immunohistochemical markers of the cell division cycle (CDC) in five of the sixteen neurogenic niches of adult brain, the dorsal telencephalon, habenula, preoptic area, hypothalamus and cerebellum...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28087607/type-2-diabetes-obesity-and-breast-cancer-risk-the-multiethnic-cohort
#7
Gertraud Maskarinec, Simone Jacobs, Song-Yi Park, Christopher A Haiman, Veronica Wendy Setiawan, Lynne R Wilkens, Loic Le Marchand
BACKGROUND: Obesity has been more consistently associated with breast cancer than type 2 diabetes (T2D). This analysis examined the combination of the two factors in the Multiethnic Cohort (MEC). METHODS: Women aged 45-75 years entered the MEC in 1993-1996 by completing a questionnaire. T2D status was self-reported at baseline, two follow-up questionnaires, and confirmed by administrative data. Cancers were identified from tumor registries and deaths through vital records until 2010...
January 13, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28087048/-characteristics-and-risk-factors-for-recurrence-of-cutaneous-squamous-cell-carcinoma-with-conventional-surgery-and-surgery-with-delayed-intraoperative-margin-assessment
#8
Judith Domínguez-Cherit, Georgina Rodríguez-Gutiérrez, Verónica Narváez Rosales, Sonia Toussaint Caire, Verónica Fonte Avalos
BACKGROUND: Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma (SCC). Basal cell carcinoma is the most common and least aggressive but in a low percentage of cases, despite appropriate wide surgical margins, it can be aggressive, producing local invasion, recurrences and distance metastasis. SCC has a more aggressive behaviour invading first the skin, the lymph nodes and less frequently produces distance metastasis OBJECTIVE: To identify the characteristics of recurrent SCC and frequency of new SCC after conventional surgical and primary closure or closure delayed until a histological reporting of tumour-free surgical margins, in order to achieve a better surgical option, in our Mexican population...
January 10, 2017: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28079952/regioselectivity-change-in-the-organocatalytic-enantioselective-3-2-cycloaddition-with-nitrones-through-cooperative-h-bonding-catalysis-iminium-activation
#9
Liher Prieto, Veronica Juste-Navarro, Uxue Uria, Ignacio Delso, Efraim Reyes, Tomas Tejero, Luisa Carrillo, Pedro Merino, Jose L Vicario
The reaction of nitrones with enals under iminium activation can be modulated by using cooperative H-bonding catalysis to induce the participation of a nitrone ylide (C-N-C) instead of the classical C-N-O dipole. As a consequence, N-hydroxypyrrolidines, rather than the expected isoxazolidines, are obtained. The reaction proceeds smoothly and high enantioselectivities are observed in all cases. By using the appropriate substrate, polysubstituted pyrrolidines incorporating quaternary stereocenters can be efficiently prepared...
January 12, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28079530/can-intoxication-status-be-used-as-a-prediction-tool-for-manner-of-death-a-comparison-of-the-intoxication-status-in-violent-suicides-and-homicides
#10
D Kimberley Molina, Veronica M Hargrove
Determining the manner of death in medicolegal death investigations can be difficult. The investigator relies on many facets of death investigation, including the circumstances of death and autopsy examination. A study was designed to analyze whether the intoxication status of the decedent could be used as another tool in death investigations. The intoxication status of violent (nonoverdose or poisoning) suicides and homicides was retrospectively reviewed and compared. A total of 625 deaths were identified, including 366 suicides and 259 homicides...
January 10, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28079192/differential-cytotoxic-effects-of-graphene-and-graphene-oxide-on-skin-keratinocytes
#11
Marco Pelin, Laura Fusco, Verónica León, Cristina Martín, Alejandro Criado, Silvio Sosa, Ester Vázquez, Aurelia Tubaro, Maurizio Prato
Impressive properties make graphene-based materials (GBMs) promising tools for nanoelectronics and biomedicine. However, safety concerns need to be cleared before mass production of GBMs starts. As skin, together with lungs, displays the highest exposure to GBMs, it is of fundamental importance to understand what happens when GBMs get in contact with skin cells. The present study was carried out on HaCaT keratinocytes, an in vitro model of skin toxicity, on which the effects of four GBMs were evaluated: a few layer graphene, prepared by ball-milling treatment (FLG), and three samples of graphene oxide (GOs, a research-grade GO1, and two commercial GOs, GO2 and GO3)...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28079156/a-mucin-like-peptide-from-fasciola-hepatica-instructs-dendritic-cells-with-parasite-specific-th1-polarizing-activity
#12
Verónica Noya, Natalie Brossard, Ernesto Rodríguez, L Sebastián Dergan-Dylon, Carlos Carmona, Gabriel A Rabinovich, Teresa Freire
Fasciolosis is a trematode zoonosis of interest in public health and cattle production. We report here the immunostimulatory effect of a 66 mer mucin-like peptide from Fasciola hepatica (Fhmuc), which synergizes with lipopolysaccharide (LPS) to promote dendritic cell (DC) maturation, endowing these cells with Th1-polarizing capacity. Exposure of DCs to Fhmuc in presence of LPS induced enhanced secretion of pro-inflammatory cytokines and expression of co-stimulatory molecules by DCs, promoting their T cell stimulatory capacity and selectively augmenting IFN-γ secretion by allogeneic T cells...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078498/perinatal-exposure-to-bisphenol-a-or-diethylstilbestrol-increases-the-susceptibility-to-develop-mammary-gland-lesions-after-estrogen-replacement-therapy-in-middle-aged-rats
#13
Ayelen L Gomez, Melisa B Delconte, Gabriela A Altamirano, Lucia Vigezzi, Veronica L Bosquiazzo, Luís F Barbisan, Jorge G Ramos, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
The development of the mammary gland is a hormone-regulated event. Several factors can dysregulate its growth and make the gland more susceptible to cellular transformation. Among these factors, perinatal exposure to xenoestrogens and hormone replacement therapy has been associated with increased risk of developing breast cancer. Here, we assessed the effects induced by estrogen replacement therapy (ERT) in ovariectomized (OVX) middle-aged rats and whether perinatal exposure to diethylstilbestrol (DES) or bisphenol A (BPA) modified these effects in the mammary gland...
January 11, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28078251/a-review-of-fermented-foods-with-beneficial-effects-on-brain-and-cognitive-function
#14
REVIEW
Binna Kim, Veronica Minsu Hong, Jeongwon Yang, Heejung Hyun, Jooyeon Jamie Im, Jaeuk Hwang, Sujung Yoon, Jieun E Kim
Around the world, fermentation of foods has been adopted over many generations, primarily due to their commercial significance with enriched flavors and high-profile nutrients. The increasing application of fermented foods is further promoted by recent evidence on their health benefits, beyond the traditionally recognized effects on the digestive system. With recent advances in the understanding of gut-brain interactions, there have also been reports suggesting the fermented food's efficacy, particularly for cognitive function improvements...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28077706/connexin-mediated-signaling-in-nonsensory-cells-is-crucial-for-the-development-of-sensory-inner-hair-cells-in-the-mouse-cochlea
#15
Stuart L Johnson, Federico Ceriani, Oliver Houston, Roman Polishchuk, Elena Polishchuk, Giulia Crispino, Veronica Zorzi, Fabio Mammano, Walter Marcotti
: Mutations in the genes encoding for gap junction proteins connexin 26 (Cx26) and connexin 30 (Cx30) have been linked to syndromic and nonsyndromic hearing loss in mice and humans. The release of ATP from connexin hemichannels in cochlear nonsensory cells has been proposed to be the main trigger for action potential activity in immature sensory inner hair cells (IHCs), which is crucial for the refinement of the developing auditory circuitry. Using connexin knock-out mice, we show that IHCs fire spontaneous action potentials even in the absence of ATP-dependent intercellular Ca(2+) signaling in the nonsensory cells...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077620/mitogen-induced-distinct-epi-alleles-are-phosphorylated-at-either-h3s10-or-h3s28-depending-on-h3k27-acetylation
#16
Dilshad H Khan, Shannon Healy, Shihua He, Daniel Lichtensztejn, Ludger Klewes, Kiran L Sharma, Veronica Lau, Sabine Mai, Geneviève P Delcuve, James R Davie
Stimulation of the MAPK pathway results in mitogen- and stress-activated protein kinase 1/2 (MSK1/2)-catalyzed phosphorylation of histone H3 at serine 10 or 28 and expression of immediate-early (IE) genes. In 10T1/2 mouse fibroblasts, phosphorylation of H3S10 and H3S28 occurs on different H3 molecules and in different nuclear regions. Likewise, we show that mitogen-induced H3S10 and H3S28 phosphorylation occurs in separate pools in human primary fibroblasts. High-resolution imaging studies on both cell types have revealed that H3S10 and H3S28 phosphorylation events can be induced in a single cell but on different alleles, giving rise to H3S10ph and H3S28ph epi-alleles...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28076370/dizziness-and-falls-in-obese-inpatients-undergoing-metabolic-rehabilitation
#17
Stefano Corna, Valentina Aspesi, Nicola Cau, Federica Scarpina, Natalia Gattini Valdés, Luigia Brugliera, Veronica Cimolin, Paolo Capodaglio
AIM: The relationship between dizziness and falls in the obese population is a relatively unexplored issue. The aims of the present study were to define the 1-year prevalence of dizziness in an obese inpatient population undergoing metabolic rehabilitation and to investigate possible correlations with fall events. MATERIALS AND METHODS: We recruited 329 obese subjects: 203 female (BMI 43,74 kg/m2 ± 0.5 SE; age 17-83 years, 58.33 ± 0.9 SE) and 126 male (BMI 44,27kg/m2 ± 0...
2017: PloS One
https://www.readbyqxmd.com/read/28075222/expression-of-myd88-in-adipose-tissue-of-obese-people-is-there-some-role-in-the-development-of-metabolic-syndrome
#18
Ada M Cuevas, Mariana Lazo, Isabel Zuñiga, Fernando Carrasco, Jim J Potter, Veronica Alvarez, Marcos Berry, Fernando Maluenda, Mario Ferrario, Jeanne M Clark
BACKGROUND: The mechanism leading to the development of metabolic complications in obese individuals is not fully understood. Thus, the objective of this study was to examine differences in insulin resistance, inflammation, cytokine and adipokine levels, and expression of selected genes across obese individuals with different number of metabolic syndrome (MetS) components. METHODS: Forty obese individuals who underwent bariatric surgery, divided in three groups based on the number of components of MetS, in addition to abdominal obesity (0, 1, and 2-3 additional components), were studied...
January 11, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28075062/specific-arabidopsis-thaliana-malic-enzyme-isoforms-can-provide-anaplerotic-pyruvate-carboxylation-function-in-saccharomyces-cerevisiae
#19
Mariana Beatriz Badia, Robert Mans, Alicia V Lis, Marcos Ariel Tronconi, Cintia Lucía Arias, Verónica Graciela Maurino, Carlos Santiago Andreo, María Fabiana Drincovich, Antonius J A van Maris, Mariel Claudia Gerrard Wheeler
NAD(P)-malic enzyme (NAD(P)-ME) catalyzes the reversible oxidative decarboxylation of malate to pyruvate, CO2 and NAD(P)H and is present as a multigene family in Arabidopsis. The carboxylation reaction catalyzed by purified recombinant A. thaliana NADP-ME proteins is faster than those reported for other animal or plant isoforms. In contrast, no carboxylation activity could be detected in vitro for the NAD-dependent counterparts. In order to further investigate their putative carboxylating role in vivo, Arabidopsis NAD(P)-ME isoforms, as well as the NADP-ME2del2 (with a decreased ability to carboxylate pyruvate) and NADP-ME2R115A (lacking fumarate activation) versions, were functionally expressed in the cytosol of pyruvate carboxylase negative (Pyc(-) ) Saccharomyces cerevisiae strains...
January 11, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28074986/-recommendations-for-the-management-of-pancreatic-cancer-type-adenocarcinoma-a-consensus-statement-reached-during-the-2015-latin-american-symposium-on-gastroenterological-oncology
#20
Christian Caglevic, Jorge Gallardo, Marcela de la Torre, Mauricio Mahave, Bettina Müller, Sebastián Solé, Yuri Moscoso, Hernán De La Fuente, Juan Carlos Roa, Sebastián Hoefler, Jean M Butte, Pablo González M, Juan Manuel O'Connor, Javiera Torres, Verónica Pérez Encalada, Daniel Alarcón Cano, Luis Ubillos, Christian Rolfo, Alejo Lingua, Consuelo Díaz Romero, Alejandro Padilla Rosciano, Viviana Cuartero, Germán Calderillo Ruiz, Gilberto Schwartsmann, Xavier Kon Jara, Andrés Andrade G, Luis Mas López, Olga Barajas, Marcela Carballido, Hanns Lembach, Lena Morillas G, Enrique Roca, José Lobatón, Paola Montenegro B, Andrés Yepes, Hugo Marsiglia
Pancreatic cancer is a malignancy of great impact in developed countries and is having an increasing impact in Latin America. Incidence and mortality rates are similar for this cancer. This is an important reason to offer to the patients the best treatments available. During the Latin American Symposium of Gastroenterology Oncology (SLAGO) held in Viña del Mar, Chile, in April 2015, a multidisciplinary group of specialists in the field met to discuss about this disease. The main conclusions of this meeting, where practitioners from most of Latin American countries participated, are listed in this consensus that seek to serve as a guide for better decision making for patients with pancreatic cancer in Latin America...
October 2016: Revista Médica de Chile
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